Abstract—The propagation of high-energy charged particles in the magnetic field, which is a superposition of the mean homogeneous magnetic field and magnetic inhomogenieties of various scales, is considered on the basis of the Fokker-Planck kinetic equation. The analytical expression for the cosmic ray distribution function corresponding to the instantaneous particle injection in the direction perpendicular to the regular magnetic field is obtained. The solution of the kinetic equation in the small angle approximation is applied for the case of particle emission along the mean magnetic field. It is shown that the spatial-temporal cosmic ray distribution depends substantially on the direction of particle injection. The evolution of the angular distribution of solar cosmic rays is analyzed on the basis of the derived solutions of the kinetic equation.

中文翻译：

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带电粒子在不同注入方向上在磁场中的动力学传播

摘要-根据Fokker-Planck动力学方程，考虑了高能带电粒子在磁场中的传播，这是平均均匀磁场和各种尺度的磁不均匀性的叠加。获得了与垂直于规则磁场的方向上的瞬时粒子注入相对应的宇宙射线分布函数的解析表达式。对于沿平均磁场发射粒子的情况，采用小角度近似中的动力学方程式的解。结果表明，时空宇宙射线分布基本上取决于粒子注入的方向。在得出的动力学方程解的基础上，分析了太阳宇宙射线角分布的演变。